I'm not sure I understand the exact difference between Civ 6 without Denuvo and Civ 7 with. Nor had I realized that Civ 6 modders gained the ability to modify Civ 6's binary code like that. Gives me hope for a lekmod kind of deal for Civ 6 one day.
From what I can tell this means that mods that go beyond the scope of the modding tools provided by Firaxis are difficult even without Denuvo but with Denuvo it's even more difficult? Is that correct?
Denuvo does not prevent standard mods, but any Mod that touches the EXE file with Denuvo is impossible. I don't know if it would be possible with DLL files, but Firaxis didn't even release them for CIV 6. Another thing is that Denuvo need to authenticate every X days (depends on the publisher) the game must connect to the server to get one back, so playing offline is possible if you have the active ticket if not you have to go online and at least for me this gave me some problems (especially with fm 2023 because the server had problems and I've been avoiding every Denuvo game since then). for further information on this I put this link where they talk about it
Denuvo doesn't let me play a game offline? :: Help and Tips
steamcommunity.com